kauri resin vs kauri copal

kauri resin and kauri copal both are nouns.

Word	Noun	Adjective	Verb	Adverb
kauri resin	Yes	No	No	No
kauri copal	Yes	No	No	No

As nouns, kauri resin and kauri copal are synonyms defined as:

kauri resin and kauri copal: resin of the kauri trees of New Zealand; found usually as a fossil; also collected for making varnishes and linoleum

Other synonyms of kauri resin include kauri, kauri gum.

kauri resin (noun)	kauri copal (noun)
resin of the kauri trees of New Zealand; found usually as a fossil; also collected for making varnishes and linoleum	resin of the kauri trees of New Zealand; found usually as a fossil; also collected for making varnishes and linoleum